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My research studies changes in the modern climate on the surface of the Earth and their interaction with the solid Earth below. Research in the lab lies in three areas in this broad framework: 1) mass balance of ice sheets and glaciers, 2) geodynamics and rheology of the upper mantle, and 3) linking local changes in Earth's gravity (and hence mass) to local causes. We also develop mathematical methods to carry out our work and release much of them as open-source software packages online.Show Less
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Courses
- PDAESProgramming and Data Analysis in the Earth Sciences
- IPGInverse Problems in Geophysics
- GGeodynamics
- PEPhysics of the Earth
Grants
- CAREER - Inversion of Localized High-Resolution Polar Gravity Fields to Estimate Mass Change
Principal Investigator (PI)
2022
$265.4K
Active - Collaborative Research: Revealing the Hidden Groundwater Storage Dynamics of the Great Lakes Basin by Synthesizing Geodesy, Hydrologic Modeling, and Remote Sensing
Principal Investigator (PI)
2022
$117.4K
Active - Determining Earth Structure for the Local Dynamic Geoid
Principal Investigator (PI)
2017
$460.5K
News
- Greenland’s Southwest Ice Sheet Particularly Sensitive to Warming
2019
- Antarctic Ice Loss Ramps Up, Speeding Sea Level Rise
2018
Publications (23)
Recent
- Vertical Displacements of the Amazon Basin From GRACE and GPS
2020
- Mass balance of the Greenland Ice Sheet from 1992 to 2018
2020
- Long-term and inter-annual mass changes in the Iceland ice cap determined from GRACE gravity using Slepian functions
2019
- Accelerating changes in ice mass within Greenland, and the ice sheet’s sensitivity to atmospheric forcing
2019
- Mass balance of the Antarctic Ice Sheet from 1992 to 2017
2018
- The changing mass of glaciers on the Tibetan Plateau, 2002–2016, using time-variable gravity from the GRACE satellite mission
2018
- The increasing rate of global mean sea-level rise during 1993–2014
2017
- Quantifying the sensitivity of sea level change in coastal localities to the geometry of polar ice mass flux
2017
- The increasing rate of global mean sea--level rise during 1993--2014
2016
- Ice mass loss in Greenland, the Gulf of Alaska, and the Canadian Archipelago: Seasonal cycles and decadal trends
2016
- Monitoring southwest Greenland’s ice sheet melt with ambient seismic noise
2016
- A Suite of Software Analyzes Data on the Sphere
2015
- Slepian_bravo: Release 1.0.0
2015
- Slepian_alpha: Release 1.0.0
2015
- Slepian_charlie: Release 1.0.0
2015
- Slepian_delta: Release 1.0.0
2015
- Accelerated West Antarctic ice mass loss continues to outpace East Antarctic gains
2015
- A Test of Recent Inferences of Net Polar Ice Mass Balance based on Long-Wavelength Gravity
2013
- Mapping Greenland’s mass loss in space and time
2012
- Constraints on upper mantle viscosity from the flow‐induced pressure gradient across the Australian continental keel
2010
- Lithospheric thinning and localization of deformation during Rayleigh-Taylor instability with nonlinear rheology and implications for intracontinental magmatism
2010
- The effects of lithospheric thickness variations on the dynamics of the Earth's upper mantle
2010
- Rayleigh-Taylor instability under a shear stress free top boundary condition and its relevance to removal of mantle lithosphere from beneath the Sierra Nevada
2008